How would i solve this problem?

If m∠c = 147°, determine m∠e. 147° 57° 33° 180°

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Through non-collinear points there is exactly one plane.